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iWire Speed Density Adapter Subaru WRX 08-14/STI 08-14


  • $ 6999

  • Brand: iWire
  • Part #: PP-BTSD002
  • Plug and Play: Yes
  • Tune Required: Yes
  • Warranty: N/A

No longer cut out the stock Mass Air Flow (MAF) plug to convert to Speed Density (SD) in your 2008-2014 Subaru use iWire's plug and play Speed Density harness. Our harness is built to last with Milspec grade materials like flame retardant, corrosion, and abrasion resistant Tezfel wire. We've also wrapped it in Raychem DR-25 heat shrink tube that can withstand the harsh environment of the engine bay. The Intake Air Temerature or IAT sensor plug is booted and the MAF sensor connector is potted to ensure a true weatherproof seal and secure wire connections. 

Optional AEM Manifold Absolute Pressure (MAP) sensor adapter for upgrading when the stock MAP reaches its limit. Built to the same specifications as the MAF harness for a high quality connection that will resist the high temperature engine bay location on the intake manifold. 


Note: Works with standard GM IAT and AEM MAP, sensors not included


Standard Length from MAF to IAT is 36 inches.

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